Hey guys what would you recommend on size for a single turbo for a 351 cleveland. Would want 650 hp. Would be using 4v cast manifold turned round and a set of alloy 4v afd heads. It has to be a ball bearing one. Any help would be appreciated.

Hey guys what would you recommend on size for a single turbo for a 351 cleveland. Would want 650 hp. Would be using 4v cast manifold turned round and a set of alloy 4v afd heads. It has to be a ball bearing one. Any help would be appreciated.

$1990 trade from GCG for GT42 plain bearing $3700 for ball bearing, you wont need ball bearing with a 351 I am probably getting this turbo from the US and it should support about 850hp on my 351, they are most efficient upwards of 20psi when used on a 351, ball bearing is only really needed when running the same size turbo on a smaller motor or when boost is going to be more than 25psi. But if you have the money I guess BB is better option. There are many other turbo's ather than GT ones that are often cheaper and lighter as well, The GT42 is a heavy bitch but everyone who I have read about that has used one has no problems with it.

The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.

AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.